Package com.linkedin.d2.balancer.strategies.degrader

Examples of com.linkedin.d2.balancer.strategies.degrader.DegraderLoadBalancerStrategyV3$Partition

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  public ZooKeeperConnectionManager build()
  {
    _announcer.setWeight(1d);

    return new ZooKeeperConnectionManager(_zkHostname + ":" + _zkPort,
                                          _sessionTimeoutInMs,
                                          _basePath,
                                          new ZKUriStoreFactory(),
                                          _announcer);
  }
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    // write D2-related configuration to ZooKeeper
    // all the configuration here are permanent, no need to re-write as long as ZooKeeper still has the data
    // therefore in real case, do this "discovery" step separately

    final HttpServer server = RestLiExampleBasicServer.createServer();
    final ZooKeeperConnectionManager zkConn = createZkConn();

    startServer(server, zkConn);

    System.out.println("Example server with D2 is running with URL " + RestLiExampleBasicServer.getServerUrl() + ". Press any key to stop server.");
    System.in.read();
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    TogglingPublisher<UriProperties> uriToggle = _factory.createUriToggle(zkUriRegistry, fsUriStore, uriBus);

    SimpleLoadBalancerState state = new SimpleLoadBalancerState(
            executorService, uriBus, clusterBus, serviceBus, _clientFactories, _loadBalancerStrategyFactories,
            _sslContext, _sslParameters, _isSSLEnabled, _clientServicesConfig);
    SimpleLoadBalancer balancer = new SimpleLoadBalancer(state, _lbTimeout, _lbTimeoutUnit);

    TogglingLoadBalancer togLB = _factory.createBalancer(balancer, state, clusterToggle, serviceToggle, uriToggle);
    togLB.start(new Callback<None>() {

      @Override
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    TogglingPublisher<ServiceProperties> serviceToggle = _factory.createServiceToggle(zkServiceRegistry,
                                                                             fsServiceStore,
                                                                             serviceBus);
    TogglingPublisher<UriProperties> uriToggle = _factory.createUriToggle(zkUriRegistry, fsUriStore, uriBus);

    SimpleLoadBalancerState state = new SimpleLoadBalancerState(
            executorService, uriBus, clusterBus, serviceBus, _clientFactories, _loadBalancerStrategyFactories,
            _sslContext, _sslParameters, _isSSLEnabled, _clientServicesConfig);
    SimpleLoadBalancer balancer = new SimpleLoadBalancer(state, _lbTimeout, _lbTimeoutUnit);

    TogglingLoadBalancer togLB = _factory.createBalancer(balancer, state, clusterToggle, serviceToggle, uriToggle);
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                                                           List<String> prioritizedSchemes)
  {
    List<SchemeStrategyPair> orderedStrategies = new ArrayList<SchemeStrategyPair>(prioritizedSchemes.size());
    for (String scheme : prioritizedSchemes)
    {
      LoadBalancerStrategy strategy = getStrategy(serviceName, scheme);
      if (strategy != null)
      {
        orderedStrategies.add(new SchemeStrategyPair(
                                scheme,
                                getStrategy(serviceName, scheme))
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  {
    final Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories =
        new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();

    final RandomLoadBalancerStrategyFactory randomStrategyFactory = new RandomLoadBalancerStrategyFactory();
    final DegraderLoadBalancerStrategyFactoryV2 degraderStrategyFactoryV2 = new DegraderLoadBalancerStrategyFactoryV2();
    final DegraderLoadBalancerStrategyFactoryV3 degraderStrategyFactoryV3 = new DegraderLoadBalancerStrategyFactoryV3();
    final DegraderLoadBalancerStrategyFactoryV2_1 degraderStrategyFactoryV2_1 = new DegraderLoadBalancerStrategyFactoryV2_1();

    loadBalancerStrategyFactories.put("random", randomStrategyFactory);
    loadBalancerStrategyFactories.put("degrader", degraderStrategyFactoryV2);
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        new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();

    final RandomLoadBalancerStrategyFactory randomStrategyFactory = new RandomLoadBalancerStrategyFactory();
    final DegraderLoadBalancerStrategyFactoryV2 degraderStrategyFactoryV2 = new DegraderLoadBalancerStrategyFactoryV2();
    final DegraderLoadBalancerStrategyFactoryV3 degraderStrategyFactoryV3 = new DegraderLoadBalancerStrategyFactoryV3();
    final DegraderLoadBalancerStrategyFactoryV2_1 degraderStrategyFactoryV2_1 = new DegraderLoadBalancerStrategyFactoryV2_1();

    loadBalancerStrategyFactories.put("random", randomStrategyFactory);
    loadBalancerStrategyFactories.put("degrader", degraderStrategyFactoryV2);
    loadBalancerStrategyFactories.put("degraderV2", degraderStrategyFactoryV2);
    loadBalancerStrategyFactories.put("degraderV3", degraderStrategyFactoryV3);
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    final Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories =
        new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();

    final RandomLoadBalancerStrategyFactory randomStrategyFactory = new RandomLoadBalancerStrategyFactory();
    final DegraderLoadBalancerStrategyFactoryV2 degraderStrategyFactoryV2 = new DegraderLoadBalancerStrategyFactoryV2();
    final DegraderLoadBalancerStrategyFactoryV3 degraderStrategyFactoryV3 = new DegraderLoadBalancerStrategyFactoryV3();
    final DegraderLoadBalancerStrategyFactoryV2_1 degraderStrategyFactoryV2_1 = new DegraderLoadBalancerStrategyFactoryV2_1();

    loadBalancerStrategyFactories.put("random", randomStrategyFactory);
    loadBalancerStrategyFactories.put("degrader", degraderStrategyFactoryV2);
    loadBalancerStrategyFactories.put("degraderV2", degraderStrategyFactoryV2);
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    Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories =
        new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();

    loadBalancerStrategyFactories.put("rr", new RandomLoadBalancerStrategyFactory());
    loadBalancerStrategyFactories.put("degrader",
                                      new DegraderLoadBalancerStrategyFactoryV3());

    // define the clients that we support (http, etc)
    Map<String, TransportClientFactory> clientFactories =
        new HashMap<String, TransportClientFactory>();
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    {
      foo1Data.put(i, new PartitionData(1.0));
    }
    partitionDescriptions.put(foo1, foo1Data);

    DegraderLoadBalancerStrategyV3 strategy = new DegraderLoadBalancerStrategyV3(new DegraderLoadBalancerStrategyConfig(5000), serviceName, null);
    List<LoadBalancerState.SchemeStrategyPair> orderedStrategies = new ArrayList<LoadBalancerState.SchemeStrategyPair>();
    orderedStrategies.add(new LoadBalancerState.SchemeStrategyPair("http", strategy));

    PartitionAccessor accessor = new TestDeadlockPartitionAccessor(numPartitions);
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Related Classes of com.linkedin.d2.balancer.strategies.degrader.DegraderLoadBalancerStrategyV3$Partition

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  • com.example.d2.client.ExampleD2Client
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  • com.example.d2.server.ExampleD2Server
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  • com.linkedin.d2.balancer.clients.DynamicClientTest$TestLoadBalancer
  • com.linkedin.d2.balancer.clients.RewriteClientTest
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